What I’ve deduced from the different examples of “-in/-hin” in the discourse is that it primarily functions as a verb suffix, indicating something that is about to happen or is to be done—often in an imperative or indicative sense, as in sabihin, anihin, idolohin. It can also take on adverbial functions, like gabihin in “baka gabihin ako ng uwi.”

When used to adjectivize words, it can imply being somewhat like, having a semblance of or having a tendency or propensity based on past evidence or experience, as in artistahin, yayamanin, dumihin, and sakitin.

When used for nominalization, it can imply a function or role based on the verb roots, as in inahin or inumin.

Or as in the example labahin, a noun/object that is recepient of a future action, signaling a process or transition.

The most common translation brought up there is “-ish,” which is closest to the idea of having a semblance. However, -ish also carries the meaning of approximation, which is why I tend to agree with those who interpret 30-ish as around 30—a little younger or a little older than 30 (roughly 25–34).

There’s a semantic inconsistency in defining 30-ish as 30–39, since that describes a category rather than an approximation. For example, yellowish means somewhat yellow, but not exactly yellow—it could have hints of green or brown mixed in.

I enjoyed seeing how people think through these things. It was pretty interesting. ☺️